关于listener无法启动的问题解决

[oracle@oel log]$ lsnrctl
LSNRCTL for Linux: Version 10.2.0.1.0 - Production on 02-MAY-2013 12:11:38
Copyright (c) 1991, 2005, Oracle.  All rights reserved.
sWelcome to LSNRCTL, type "help" for information.
LSNRCTL> tatus
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY))
start
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
LSNRCTL> Starting /u01/app/ora10g/product/10.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /u01/app/ora10g/product/10.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/app/ora10g/product/10.2.0/db_1/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521)))
Error listening on: (ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY))
TNS-12555: TNS:permission denied
 TNS-12560: TNS:protocol adapter error
  TNS-00525: Insufficient privilege for operation
   Linux Error: 1: Operation not permitted
Listener failed to start. See the error message(s) above...

[root@oel tmp]# ll -a
total 24
drwxrwxrwt  4 root   root 4096 May  2 12:10 .
drwxr-xr-x 24 root   root 4096 Jun 16  2012 ..
drwxrwxrwt  2 root   root 4096 May  2 12:11 .oracle
drwx------  2 oracle dba  4096 May  1 12:36 yum-oracle-n3UNcY
[root@oel tmp]# cd .oracle
[root@oel .oracle]# ll
total 0
srwxrwxrwx 1 oracle dba 0 Apr  1 16:44 s#16480.1
srwxrwxrwx 1 oracle dba 0 Apr  1 16:44 s#16480.2
srwxrwxrwx 1 ora11g dba 0 Apr 21 16:59 s#2171.1
srwxrwxrwx 1 ora11g dba 0 Apr 21 16:59 s#2171.2
srwxrwxrwx 1 ora11g dba 0 Apr 21 16:59 sPNPKEY
[root@oel .oracle]# 

[root@oel tmp]# chown oracle:dba .oracle
[root@oel tmp]# ll
total 4
drwx------ 2 oracle dba 4096 May  1 12:36 yum-oracle-n3UNcY
[root@oel tmp]# ll -a
total 24
drwxrwxrwt  4 root   root 4096 May  2 12:10 .
drwxr-xr-x 24 root   root 4096 Jun 16  2012 ..
drwxrwxrwt  2 oracle dba  4096 May  2 12:11 .oracle
drwx------  2 oracle dba  4096 May  1 12:36 yum-oracle-n3UNcY

LSNRCTL> status
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521))
TNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
Connecting to (ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY))
startTNS-12541: TNS:no listener
 TNS-12560: TNS:protocol adapter error
  TNS-00511: No listener
   Linux Error: 111: Connection refused
LSNRCTL> 
Starting /u01/app/ora10g/product/10.2.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 10.2.0.1.0 - Production
System parameter file is /u01/app/ora10g/product/10.2.0/db_1/network/admin/listener.ora
Log messages written to /u01/app/ora10g/product/10.2.0/db_1/network/log/listener.log
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY)))
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 10.2.0.1.0 - Production
Start Date                02-MAY-2013 12:15:07
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/app/ora10g/product/10.2.0/db_1/network/admin/listener.ora
Listener Log File         /u01/app/ora10g/product/10.2.0/db_1/network/log/listener.log
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oel.oracle.com)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=PNPKEY)))
Services Summary...
Service "CUST01" has 1 instance(s).
  Instance "CUST01", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully
LSNRCTL>